News tagged with force
Physicists Measure Elusive 'Persistent Current' That Flows Forever
Oct 08, 2009 |
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(PhysOrg.com) -- Physicists at Yale University have made the first definitive measurements of "persistent current," a small but perpetual electric current that flows naturally through tiny rings of metal wire ...
Physicists tweak quantum force, reducing barrier to tiny devices
Jul 14, 2008 |
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Cymbals don't clash of their own accord – in our world, anyway. But the quantum world is bizarrely different. Two metal plates, placed almost infinitesimally close together, spontaneously attract each other.
A line on string theory
Nov 12, 2009 |
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(PhysOrg.com) -- A Harvard theoretical physicist has discussed with scientists at the Large Hadron Collider in Switzerland the possibility that they may discover a theorized "stau" particle, with a lifetime ...
Scientists Image the 'Anatomy' of a Molecule (w/ Video)
Aug 28, 2009 |
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(PhysOrg.com) -- For the first time, IBM researchers in Zurich, Switzerland, have taken a 3D image of an individual molecule. Using an atomic force microscope, the researchers constructed a "force map" of ...
Possible Fifth Force Would Make Direct Detection of Dark Matter Unlikely
Mar 26, 2009 |
3.9 / 5 (40) |
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(PhysOrg.com) -- No one knows exactly what a “fifth force” might be, but studies have shown that, if a long-range fifth force does exist, it could have surprising effects on the universe’s structure formation. ...
New Data Suggests We Don’t Live in a Void, and Supports Dark Energy
Jan 28, 2009 |
3.9 / 5 (36) |
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(PhysOrg.com) -- An alternative proposal to dark energy in which the Earth sits near the center of a large void is undergoing scrutiny, and the results show that void models fit poorly with observed data. ...
Dark Matter May be Easier to Detect than Previously Thought
Aug 10, 2009 |
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(PhysOrg.com) -- The Milky Way, like many other galaxies, is thought to be embedded in massive, lumpy amounts of dark matter that release gamma rays and other emissions. Although at first these emissions seem ...
Making a Point: Picoscale Stability in a Room-Temperature AFM
Mar 25, 2009 |
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(PhysOrg.com) -- Forget dancing angels, a research team from the National Institute of Standards and Technology (NIST) and the University of Colorado (CU) has shown how to detect and monitor the tiny amount ...
'Gray's Paradox' solved: Researchers discover secret of speedy dolphins
Nov 24, 2008 |
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(PhysOrg.com) -- There was something peculiar about dolphins that stumped prolific British zoologist Sir James Gray in 1936. He had observed the sea mammals swimming at a swift rate of more than 20 miles per ...
Researchers see exotic force for first time
Jan 07, 2009 |
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(PhysOrg.com) -- For the first time, researchers have measured a long-theorized force that operates at distances so tiny they’re measured in billionths of a meter, which may have important applications in ...
Salt Water System Could Generate Hydrogen
Mar 18, 2009 |
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(PhysOrg.com) -- The idea of generating hydrogen from salt water has often been claimed to work effectively. However, the systems proposed so far generally require a much greater energy input than the energy ...
Scientists Discover Light Force with 'Push' Power
Jul 13, 2009 |
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(PhysOrg.com) -- A team of Yale University researchers has discovered a "repulsive" light force that can be used to control components on silicon microchips, meaning future nanodevices could be controlled ...
Invading black holes explain cosmic flashes
Sep 18, 2009 |
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(PhysOrg.com) -- Black holes are invading stars, providing a radical explanation to bright flashes in the universe that are one of the biggest mysteries in astronomy today.
'The photon force is with us': Harnessing light to drive nanomachines
Nov 26, 2008 |
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Science fiction writers have long envisioned sailing a spacecraft by the optical force of the sun's light. But, the forces of sunlight are too weak to fill even the oversized sails that have been tried. Now ...
Particle physics study finds new data for extra Z-bosons and potential fifth force of nature
Apr 28, 2009 |
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The Large Hadron Collider is an enormous particle accelerator whose 17-mile tunnel straddles the borders of France and Switzerland. A group of physicists at the University of Nevada, Reno has analyzed data from the accelerator ...
